Replace scoped_ptr with std::unique_ptr in //ui

ui/aura/test/env_test_helper.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_AURA_TEST_ENV_TEST_HELPER_H_
 #define UI_AURA_TEST_ENV_TEST_HELPER_H_
 
 #include <utility>
 
 #include "base/macros.h"
 #include "ui/aura/env.h"
 #include "ui/aura/input_state_lookup.h"
 
 namespace aura {
 namespace test {
 
 class EnvTestHelper {
  public:
   explicit EnvTestHelper(Env* env) : env_(env) {}
   ~EnvTestHelper() {}
 
-  void SetInputStateLookup(scoped_ptr<InputStateLookup> input_state_lookup) {
+  void SetInputStateLookup(
+      std::unique_ptr<InputStateLookup> input_state_lookup) {
     env_->input_state_lookup_ = std::move(input_state_lookup);
   }
 
   void ResetEventState() {
     env_->mouse_button_flags_ = 0;
     env_->is_touch_down_ = false;
   }
 
  private:
   Env* env_;
 
   DISALLOW_COPY_AND_ASSIGN(EnvTestHelper);
 };
 
 }  // namespace test
 }  // namespace aura
 
 #endif  // UI_AURA_TEST_ENV_TEST_HELPER_H_